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1、必修 2 Unit4 Language Points 语言点【学习目标工提高使用已学单词和结构的力量【学习重难点：把握重点单词和短语的的用法;稳固根底学问。【核心单词】1. decrease v.削减；(使)变小；变少D.削减；降低；削减的数量，其后常接介词in/ofdecrease (sth.) to/by .削减到/了increase vi.&vt.增加；增长；增加 n.增加；增加的数量 increase to/by . 增加到/了on the decrease/increase 在削减/增加高手过招这些措施将有助于降低生产本钱。These measures will help the c
2、ost of production.人口诞生率正在下降。The birthrate is .2. as a result/as a result of.结果/由于l)He was very careless., he didn, t pass the test.2) his carelessness, he didn t pass the test.3. die out慢慢毁灭;灭亡;消逝die away慢慢消逝(声音等)die down渐息(火苗等) die from因而死(外因)die of因而死(内因)die off相继死亡l)The music died away.2)The fire
3、 had died down and the room was getting cold.3)He died from a wound.4)The old man died of hunger(old age, cancer).5)These chickens died because of the Bird Flu.6)Many old customs are dying out.4. suggest. vt.建议；提出(意见、方案、理论等)；示意；说明 suggest+doing 建议做I suggest doing it in another way.我建议换一种方式做这件事。sugge
4、st sb./sb. s doing sth.建议某人做某事不说 suggest sb. to do sth.)suggest (to sb.)+that从句(向某人)建议。(所接从句用虚拟语气:sb.+should+动词原形, should可以省略)It is suggested that. 建议是suggest+that从句 示意；说明(从句用陈述语气)1) . She suggested that we lunch at the new restaurant, (have) 她建议我们在那家新开的餐馆吃午餐。2) . Her expression suggested that she h
5、ad a lie. (tell) 她的表情说明她撒了谎。5. appreciate vt.观赏；感谢；意识到；体会；理解appreciate后可接名词、代词、动名词、名词性从句等作宾语，但不能接不定式。表示“感 谢，感谢时，其后的宾语只能为“物，不能为“人。其后不直接跟if或when引导的 从句，假设语义上需要接这类从句，需借助it,即：appreciate it if/when . . . o I appreciate your ability very much. 我很观赏你的力量。We shall appreciate(hear) from you again.能再次收到你的来信，我们将
6、非常感谢。.I would appreciate it very much if you would help me with it.假如你能关心我做这件事，我将不胜感谢。I really appreciateto relax with you on this nice island.A. to have had timeB. having timeC. to have timeD. to having time6. affect (V): vt.影响；侵袭；相当于；使感动；激起哀痛、生气、爱等心情) effect (n.)表示“影响时,是名词、常用短语为:have an effect on对有影响1)A sudden change may影响)your health.2)Did the medicine have any(影响？7. protect. from .爱护免受,后接较小的事情或危害，如：harm, catchingcoldo联想拓展protect.against . .后接较大的事情，如：战斗、灾难、重税、威逼等。单项填空 Use the umbrella to yourself from the rain.D. protectionA. prevent8. protectC. defend